php curl fetching links of a url

I have a fetched a URL. If we fetch a开发者_运维知识库 URL in that page when we click on the links these are to be fetched by curl. How can I do it?

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I guess you are talking about crawling. You got a page and want to crawl the links that are inside of this page.

• http://www.google.com/search?q=php+crawler